<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="content-type" content="text/html charset=utf-8"/>
        <title>Third page</title>
    </head>
    <body>
        换
        <br>
        <br>
        <br>
        行
        <br>
        换行标签为&lt;br&gt;
        <br>
        空&nbsp;&nbsp;&nbsp;格
        <br>
        其中空格用&amp;nbsp;代替
        
    </body>
</html>